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Grade 8 – Structure of Living Things – Daily Log
Name
Date
Expectation
Conor G.
10-21-09
We are learning to...
1. Identify the major organ systems of the body.
2. Identify the functions of the major organ systems of the body.
3. Identify the organs, tissues, and cells in each organ system.
Warm-up
Activities
Identify the organ system you thought was the most interesting at the Bodies Museum
and identify three organs, three tissues, and three cells found in that system.
Digestive- stomach, small and large intestine organs.
Part 1: Getting to Know Your Frog
1. Measure the length of your frog in cm. Measure from the tip of the nose to the tip
of the toes on its back legs. How long is your frog in cm?
17 1/2cm.
2. Observe the frog’s skin. What color is the frog’s belly (ventral) side? What color is
the frog’s back (dorsal) side? Why do you think it is colored this way?
Belly-White, Top-Black/gray/brown/green. Camouflage purposes.
3. Observe the frog’s eyes. Describe where they are located. What advantage does
their location give the frog? What system are the eye’s part of?
Towards the tip of the head. Can see above water without taking all head out.
Nervous system.
4. Locate the frog’s ears. They are a circular area covered by skin located behind and to
the side of the frog’s eyes. What system are the ears a part of?
Nervous System
5. Compare the frog’s front and hind legs. How do their differences help the frog?
Name two systems that control the use of the legs.
Back legs to jump. Front arms to steer when swimming. Muscular and Circulatory.
6. To tell a female frog from a male frog you must look at their front legs and eardrums.
In male frogs the front legs have a thick pad on the toe used for grasping onto the
female during mating. Males also have a larger eardrum. Is your frog a male or
female? What systems would be different in a male and female frog?
Female, skeletal. Reproductive system, endocrine, exporpty.
Part 2: Exploring the Frog’s Internal Systems
7. At this time Mr. Bormann will demonstrate how to open the frog up to examine its
internal systems. Pay attention to the demonstration and then complete the task
with your team.
8. As you cut into the frog, what systems did you have to come into contact with? What
are the functions of those systems?
Muscular, skin, skeletal
9. Use the diagram shown on the Smart Board to identify the following organs. Identify
the organs’ function and the system it belongs to.
Organ
Heart
Function
Pump blood threw the
System
Circulatory
Large Intestine
Stomach
Small Intestine
Kidney
Liver
Lungs
body
Get energy for body
dispose of waste foods.
Get energy for body
dispose of waste foods.
Get energy for body
dispose of waste foods.
Filters and Cleans the
blood, gets rid of liquid
waste.
Filter wastes, helps
digestion
To breathe in oxygen, let
carbon dioxide out.
Digestive
Digestive
Digestive
Excetory
Digestive, Excetory
Respiratory
10. Now stick the probe down the frog’s throat (through the mouth) and observe where
you see it within the internal organs. Describe the connection between the mouth
and the internal organs. What system is this part of?
Esophagus connects to the stomach, digestive.
Part C: Clean Up
11. Place the following items in the large circular trash can: frog, frog parts, paper
towels, newspaper, gloves.
12. Use a Clorox Wipe to clean: all used tools, the blue mat, gray dissecting tray, lab
table.
13. Return all clean materials to the drawer you got them from.
Part D: What I learned Summary Questions
14. Compare the organs in the frog to what you saw at the Bodies Exhibit. How are they
similar and different?
They both have similar organ systems like the circulatory. They both have a closed
blood flow. The only difference would be the place of certain organs, and we have
extra or more things in our body.
15. The frog is an organism made of many systems working together to help the frog
survive. Explain how this dissection enabled you to better understand this
statement. We got to see how the organs connected and how things traveled
throughout the body. Like the throat to the stomach.
16. In this unit you have learned that organisms contain cells, tissues, organs, and
systems working together. Explain how this dissection enabled you to better
understand this. We got to see how they all came together to form and keep the
organism living.
17. The human is an organism made of many systems working together to help the
human survive. Explain how the Bodies Exhibit enabled you to better understand this
statement. We got to see our insides, so if we ever had a pain or problem, we would
have a good idea of what is happening.
18. In this unit you have learned that organisms contain cells, tissues, organs, and
systems working together. Explain how the Bodies Exhibit enabled you to better
understand this. We saw the circulatory system and how it goes through the body,
and how it enables us to live.
Cool-down
None
HW Assignment Finish “What I Learned Summary Questions” and post log to wiki by class on Monday,
10/26/09.
HW Completion